Single Replacement

Which metal is the most active

• Cu

• Ag

• Na

• Li

Which reaction occurs

• Ag + KNO3 ------> K + AgNO3

• K + AgNO3 ------> Ag + KNO3

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which reaction occurs

• 2Li (s) + 2H2O (l) -----> 2LiOH (aq) + H2 (g)

• 2 LiOH (aq) + H2 (g) -------> 2 Li (s) + 2 H2O (l)

Tags

NGSS.HS-PS1-2

Which reaction occurs

• Cl2 (g) + 2 KI (aq) -------> 2 KCl (aq) + I2 (g)

• 2 KCl (aq) + I2 (g) -------> Cl2 (g) + 2 KI (aq)

Tags

NGSS.HS-PS1-7

Write the halogens in order from MOST active to LEAST active

• F, I Cl, Br

• Cl, F, Br, I

• F, Cl, Br, I

• I, Br, F, Cl

Tags

NGSS.HS-PS1-2

Select the metal that is more active than H2

• Cu

• Ag

• Au

• Fe

You know a single replacement reaction will occur if...

• The less active element is located in the aqueous compound on the products side

• The more active element is located in the aqueous compound on the reactants side

• The more active element is located in the aqueous compound on the products side

Tags

NGSS.HS-PS1-1

If you wear gold jewelry in the shower does a chemical reaction take place?

• No, gold (Au) is less active than the hydrogen in water

• No, gold (Au) is more active than the hydrogen in water

• Yes, but you can't physically see the reaction happen

• Yes, gold (Au) is more active than the hydrogen in water

In the unbalanced reaction of Al + Pb(NO3)2 ----> Pb + Al(NO3)2 select the cations with the correct charge?

• Al +1 and (NO3) -2

• Al +3 and Pb +4

• Al +1 and (NO3) -1

• Al +3 and Pb +2

Hydrogen gas is produced if a metal reacts with....

• water only

• an acid only

• water or an acid

• a gas is not produced in single replacement reactions